AC MCCB
For industrial, commercial and distribution applications in IEC-standard markets.
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Reliable MCCB Manufacturing for Global Electrical Brands.
Nearly 30 years of low-voltage electrical manufacturing experience, backed by in-house components, in-house tooling, CB / CE certification and flexible OEM, SKD & CKD supply.
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From Precision Components to Complete MCCB Solutions.
Yumonn has developed from a precision component supplier into an integrated low-voltage electrical manufacturer, combining component production, tooling, assembly and flexible export supply for global B2B customers.
30 Years Industry Experience
270+ Employees
In-house Components + Tooling
IEC Focused Markets
Built for Standard Distribution and New Energy Applications.
ProductsA concise product entry designed for B2B buyers. Replace these cards with your real product series, technical data and product photos.
DC MCCB
Dedicated solutions for solar PV, energy storage, charging and other DC-side protection.
Ask for Datasheet →OEM / Private Label
Branding, packaging and selected product customization for distributors and local brands.
Discuss OEM →SKD / CKD Supply
Flexible semi-knocked-down and completely-knocked-down supply for local assembly.
Discuss Supply Mode →Four Manufacturing Advantages That Matter to B2B Customers.
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Full In-house Manufacturing
Core parts are produced internally to improve control over quality, cost, lead time and consistency.
- Mold
- Plastic Parts
- Stamping
- Coil
- Contact System
- Assembly
In-house Tooling & Fast Customization
An experienced internal tooling team enables faster mold changes and structural adjustments for customer drawings or installation requirements.
- Drawing Review
- Mold Modification
- Sampling
OEM / SKD / CKD Flexibility
Choose finished-product supply, semi-knocked-down kits or complete knocked-down solutions based on your local assembly model and import strategy.
- Finished CB
- SKD
- CKD
Focused on IEC Standard Markets
CB, CE and management-system certifications support buyers serving Southeast Asia, the Middle East and other IEC-oriented markets.
- CB
- CE
- ISO 9001
- ISO 14001
- ISO 45001
Built for Electrical Businesses Like Yours.
Who We Work With?Different visitors should quickly recognize their own business model and the specific value Yumonn can provide.
Full In-house Manufacturing
01 / PANEL BUILDERSReliable MCCBs with better cost control and optional SKD supply for local assembly.
EPC Contractors
02 / EPCCertified products, technical documentation and dimensional support for project delivery.
Private-label Importers
03 / DISTRIBUTORSReliable MCCBs with better cost control and optional SKD supply for local assembly.
Solar & Energy Storage
04 / NEW ENERGYReliable MCCBs with better cost control and optional SKD supply for local assembly.
Supply Replacement Buyers
05 / ALTERNATIVE SUPPLYReliable MCCBs with better cost control and optional SKD supply for local assembly.
Not Just Assembly. Manufacturing From Core Parts to Finished MCCB.
Manufacturing
Choose the Supply Model That Fits Your Market.
Present SKD / CKD as a commercial solution, not merely a factory capability.
Flexible CooperationFinished MCCB
For distributors, EPC contractors and panel builders that need ready-to-sell or ready-to-install products.
- OEM branding
- Standard export packing
- Technical documentation
SKD Supply
For customers with partial local assembly capability seeking lower landed cost and more supply flexibility.
- Flexible kit configuration
- Local assembly support
- Private label compatible
CKD Supply
For customers developing local manufacturing or deep assembly capabilities in their domestic market.
- Complete component kits
- Localization support
- Long-term supply model
From Requirement to Mass Production.
Customization ProcessA visible process reduces buyer uncertainty and makes the first inquiry easier.
Send Requirement
Drawing, specification, sample or target model.
Engineering Review
Compatibility and feasibility evaluation.
Tooling / Modify
Structural or mold adjustment if required.
Sample Approval
Confirm technical and visual requirements.
Mass Production
Controlled production and quality checks.
Shipment
Finished, SKD or CKD export arrangement.
Protection Solutions Across Key Electrical Scenarios.
ApplicationsCommercial Buildings
Industrial Distribution
Solar PV
Energy Storage
EV Charging
Infrastructure
Built for Quality Management and IEC-oriented Markets.
CertificationsISO
CB
CE
UDEM
RoHS
CCC
Questions B2B Buyers Usually Ask.
FAQsHow do you ensure product quality?
- MES System Monitoring — Our factory uses an MES system to oversee the entire production process.
- In-House MCCB Parts — All MCCB parts are manufactured in-house, ensuring full traceability at every step.
- 100% Inspections — We conduct inspections at every stage: inbound, first article, in-process, and final inspections before shipping.
Do you have overseas agents or branches?
No, we don’t have overseas agents or branches. We ship directly from our factory in China, which means no middleman costs and more competitive pricing.
Can you customize products based on our needs?
Yes, we can customize circuit breakers based on your requirements or drawings, whether it’s the product appearance, inside structure, or packaging. We’re here to make sure the product fits exactly what you need.
What is your lead time?
It depends on your order quantity and requirements.Usually, our delivery time is 3-10 business days. If you have an urgent order, we can work overtime to get it done for you. Rest assured, we’re proud of our 99.5% on-time delivery rate!
What is the MOQ for your products？
Our MOQ for circuit breakers is flexible depending on the product type. For standard products, we can accommodate smaller quantities, while customized products may require a higher MOQ. For specific details, please consult our sales team.
What are your payment terms?
Normally, we require a 30% deposit via T/T, with the remaining 70% balance paid before shipping. We will send you photos or videos of the products and packaging before the balance payment is made. If you prefer other payment methods, feel free to let us know, and we can discuss if it’s possible.
Can I get a sample before placing an order?
Yes, we welcome sample orders so you can test and check the quality of our products.
Can I visit your factory?
Sure! You can definitely come visit our factory in person. If that’s hard to do, we can also give you a video tour online, so you can see everything without having to travel.
What warranty do you offer?
We care a lot about product quality, and so far, we haven’t had any issues. However, we offer a 1-year warranty just in case. If there are any quality issues with our product, we’ll replace it or give you a refund at no extra cost.
Can I print our brand on the products?
Yes, you have options! You can sell under our brand, or we can add your own brand to the products—whatever works best for you.
Looking for a Reliable MCCB Manufacturing Partner?
Start a ProjectSend us your target model, specifications, drawings or supply requirements. This first draft uses a static form and can later be connected to email, WhatsApp, CRM or a form service.
OEM Available
SKD / CKD Available
Engineering Review